Gasketing Element Attachment for Open Pocket Fecal Containment
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Solution Overview
Problem
Existing absorbent sanitary articles face issues with leakage of semi-solid fecal material due to gasketing elements adhering to the topsheet, preventing the formation of an effective pocket for containment.
Innovation Solution
The method involves attaching gasketing elements to the chassis with an elastic laminate structure, ensuring the inner transverse edge detaches from the topsheet when stretched, forming an open pocket for receiving exudates by applying the gasketing elements while the chassis is in an extended state.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the gasketing element is applied to the topsheet, then the structure is stable during production, but the inner transverse edge remains adherent and cannot form an open pocket for containment
Solution Approach 1:
The gasketing element is pre-configured with an adhesive layer that is selectively positioned to adhere only at the outer transverse edge and side edges, while the inner transverse edge is designed to remain non-adherent. This preliminary configuration ensures proper attachment during production while enabling the inner edge to detach and form an open pocket during use.
Solution Approach 2:
The adhesive properties of the gasketing element are made non-uniform: the outer transverse edge and side edges have adhesive layers for secure attachment, while the inner transverse edge lacks adhesive or has reduced adhesion. This local differentiation allows the inner edge to detach and form the containment pocket while maintaining overall structural stability.
2Strength
If the gasketing element remains adherent to the topsheet, then attachment is secure, but the pocket remains closed and cannot receive exudates
Solution Approach 1:
The adhesive layer is applied selectively to specific regions of the gasketing element: the outer transverse edge and side edges have strong adhesive attachment, while the inner transverse edge is either non-adherent or has minimal adhesion. This local quality differentiation enables the inner edge to detach and form an open pocket while maintaining secure attachment elsewhere.
Solution Approach 2:
The adhesive properties of the gasketing element are segmented into different zones: adherent zones at the outer edge and sides for secure attachment, and a non-adherent zone at the inner edge for pocket formation. This segmentation allows simultaneous achievement of strong attachment and pocket opening capability.
3Ease of operation
If the inner transverse edge detaches from the topsheet, then the pocket opens for containment, but attachment reliability may be compromised
Solution Approach 1:
The adhesive layer is strategically positioned to provide strong attachment at the outer transverse edge and side edges, which are critical for maintaining structural integrity. The inner transverse edge is designed to be non-adherent or have minimal adhesion, allowing it to detach and form the open pocket without compromising overall attachment reliability.
Solution Approach 2:
The gasketing element is pre-configured during manufacturing with selective adhesive properties that ensure proper attachment points are secured while the inner edge is prepared to detach during use. This preliminary configuration guarantees both attachment reliability and pocket formation capability.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach ensures the gasketing elements effectively contain semi-solid exudates by maintaining an open pocket when worn, reducing leakage and enhancing absorbency.
Implementation Method 1
a gasketing element (38) fixed on the chassis (12) in at least one of the rear and front waist sections (18, 20), comprising an elastic laminate structure, in particular comprising an elastic film (41) and a non-woven fabric (42, 43), the gasketing element (38) being elastically extensible in a transverse direction
Data Source
AI summary
A method for producing absorbent sanitary articles including a gasketing element fixed to a chassis, wherein side edges of the gasketing element are fixed to side portions of the chassis while the gasketing element is not stretched in the transverse direction and while the side portions of the chassis are approached to each other.